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International Journal of Horticultural Science and Technology، جلد ۳، شماره ۲، صفحات ۱۴۵-۱۵۳
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عنوان انگلیسی Evaluation of freezing tolerance in olive cultivars by stomatal density and freezing stress
چکیده انگلیسی مقاله Selection of frost tolerant cultivars and understanding the mechanisms of frost hardiness could help to improve freezing resistance in olive plants. Olive cultivars may differ in frost hardiness due to differential survival of specific organs. The aim of this study was to screen different olive cultivars based on their stomatal density and metabolic modifications under cold conditions. The ‘Zard’ cultivar had the lowest while ‘Derak’ had the highest stomatal density, respectively. In another experiment, where entire potted olive plants were subjected to freezing stress (0, -6, -12 and -18 ˚C), ‘Zard’ and ‘Dehghan’ were found to be the most tolerant cultivars. They showed the lowest starch content, ionic leakage and wood injury. They also had the highest reducing sugar, phenolic and proline contents among studied cultivars. We concluded that ‘Zard’ and ‘Dehghan’ are the most tolerant cultivars and ‘Derak’, ‘Dakal’ and ‘Shiraz’ are the most sensitive cultivars to freezing injury. 
کلیدواژه‌های انگلیسی مقاله hardiness, ion leakage, proline, wood injury
نویسندگان مقاله مجید راحمی |
department of horticultural science, faculty of agriculture, shiraz university, shiraz, iran
سازمان اصلی تایید شده: دانشگاه شیراز (Shiraz university)

فاطمه یزدانی |
department of horticultural science, faculty of agriculture, shiraz university, shiraz, iran
سازمان اصلی تایید شده: دانشگاه شیراز (Shiraz university)

سحر صداقت |
department of horticultural science, faculty of agriculture, shiraz university, shiraz, iran
سازمان اصلی تایید شده: دانشگاه شیراز (Shiraz university)

نشانی اینترنتی http://ijhst.ut.ac.ir/article_62914_34b3b46b9c417f598080ec9f2787dfe8.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/413/article-413-428465.pdf
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زبان مقاله منتشر شده en
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